math/ised: Drop USE_GCC

Moreover,

- Fix build with GCC 12 [1].
- Take maintainership.

PR:		266194 [1]
Reported by:	exp-run (antoine)

math/ised/Makefile

@@ -1,10 +1,10 @@
 PORTNAME=	ised
 PORTVERSION=	2.7.1
-PORTREVISION=	7
+PORTREVISION=	8
 CATEGORIES=	math
 MASTER_SITES=	SF/${PORTNAME}
 
-MAINTAINER=	ports@FreeBSD.org
+MAINTAINER=	salvadore@FreeBSD.org
 COMMENT=	Tool for generating number sequences and arithmetic evaluation
 
 LICENSE=	GPLv3+
@@ -12,8 +12,6 @@ LICENSE_FILE=	${WRKSRC}/COPYING
 
 USES=		libedit tar:bzip2
 GNU_CONFIGURE=	yes
-# ./base.h:620:14: error: invalid output constraint '=ir' in asm
-USE_GCC=	yes
 
 PLIST_FILES=	bin/${PORTNAME} man/man1/${PORTNAME}.1.gz
 

math/ised/files/patch-src_vm.h

@@ -0,0 +1,10 @@
+--- src/vm.h.orig	2022-09-03 19:42:45 UTC
++++ src/vm.h
+@@ -25,6 +25,7 @@
+ #include <vector>
+ #include <map>
+ #include <stack>
++#include <ctime>
+ 
+ #ifdef HAVE_LIBREADLINE
+ #  if defined(HAVE_READLINE_READLINE_H)